Consider a system of two particles having masses m1 and m2. If the particle of mass m1 is pushed towards the mass centre of particles through a distance d, by what distance would the particles of mass m2 move so as to keep the mass centre of the particles at the original position?
d
If is the force acting on a particle having position vector and be the torque of this force about the origin, then
A solid sphere and a hollow sphere are thrown horizontally from a cliff with equal velocities, respectively. Then which sphere reaches first on earth ?
O is the centre of an equilateral triangle ABC. F1, F2 and F3 are three forces acting along the side AB, BC and AC as shown in figure. What should be the magnitude of F3. So that the total torque about O is zero ?
( F1 + F2 ) /2
( F1 - F2 )
(F1 + F2 )
2 (F1 + F2 )
In a rectangle ABCD ( BC = 2AB). Through which axis the moment of inertia is minimum
